Question

我有一个打开GUI的java代理。代理完成后，GUI保持打开状态。每当我再次启动代理或启动另一个代理时，我想再次使用相同的GUI。

有没有办法检测打开的GUI或在代理之间共享引用？

Answer 1

您可以使用Window类并遍历所有已创建的实例

   /**
     * Returns an array of all {@code Window}s, both owned and ownerless,
     * created by this application.
     * If called from an applet, the array includes only the {@code Window}s
     * accessible by that applet.
     * <p>
     * <b>Warning:</b> this method may return system created windows, such
     * as a print dialog. Applications should not assume the existence of
     * these dialogs, nor should an application assume anything about these
     * dialogs such as component positions, <code>LayoutManager</code>s
     * or serialization.
     *
     * @see Frame#getFrames
     * @see Window#getOwnerlessWindows
     *
     * @since 1.6
     */
public static Window[] getWindows()

还有帧

public static Frame[] getFrames()

在代理程序调用之间共享GUI（JFrame）

1 个答案: